import sys
INF = 1 << 60
MOD = 10**9 + 7 # 998244353
sys.setrecursionlimit(2147483647)
input = lambda:sys.stdin.readline().rstrip()
def resolve():
    x = int(input())
    print(10 - x // 200)
resolve() import sys sys INF = 1 << 60 INF 1 << 60 1 60 MOD = 10**9 + 7 MOD 10**9 + 7 10**9 10 9 7 sys.setrecursionlimit(2147483647) sys.setrecursionlimit sys setrecursionlimit 2147483647 input = lambda:sys.stdin.readline().rstrip() input lambda:sys.stdin.readline().rstrip() sys.stdin.readline().rstrip() sys.stdin.readline().rstrip sys.stdin.readline() sys.stdin.readline sys.stdin sys stdin readline rstrip def resolve():
    x = int(input())
    print(10 - x // 200) resolve x = int(input()) x int(input()) int input() input print(10 - x // 200) print 10 - x // 200 10 x // 200 x 200 resolve() resolve INF = 1 << 60 1 << 60 INF MOD = 10**9 + 7 10**9 + 7 MOD def resolve():
    x = int(input())
    print(10 - x // 200) def resolve():
    x = int(input())
    print(10 - x // 200) resolve input = lambda:sys.stdin.readline().rstrip() lambda:sys.stdin.readline().rstrip() input
import sys
INF = 1 << 60
MOD = 10**9 + 7 # 998244353
sys.setrecursionlimit(2147483647)
input = lambda:sys.stdin.readline().rstrip()
def resolve():
    x = int(input())
    print(10 - x // 200)
resolve()